728610518 has 16 divisors (see below), whose sum is σ = 1166201520. Its totient is φ = 340402176.

The previous prime is 728610481. The next prime is 728610521. The reversal of 728610518 is 815016827.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128555 + ... + 134102.

It is an arithmetic number, because the mean of its divisors is an integer number (72887595).

Almost surely, 2^728610518 is an apocalyptic number.

728610518 is a deficient number, since it is larger than the sum of its proper divisors (437591002).

728610518 is a wasteful number, since it uses less digits than its factorization.

728610518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262751.

The product of its (nonzero) digits is 26880, while the sum is 38.

The square root of 728610518 is about 26992.7864067421. The cubic root of 728610518 is about 899.8396907888.

The spelling of 728610518 in words is "seven hundred twenty-eight million, six hundred ten thousand, five hundred eighteen".